257569830

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{408841}}^1$

素因数の和:408861

約数の個数: 48

約数和(自身を含む): 765352224

約数和(自身を除く): 507782394

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 408841, 817682, 1226523, 2044205, 2453046, 2861887, 3679569, 4088410, 5723774, 6132615, 7359138, 8585661, 12265230, 14309435, 17171322, 18397845, 25756983, 28618870, 36795690, 42928305, 51513966, 85856610, 128784915, 257569830]

約数ペア:

[(1, 257569830), (2, 128784915), (3, 85856610), (5, 51513966), (6, 42928305), (7, 36795690), (9, 28618870), (10, 25756983), (14, 18397845), (15, 17171322), (18, 14309435), (21, 12265230), (30, 8585661), (35, 7359138), (42, 6132615), (45, 5723774), (63, 4088410), (70, 3679569), (90, 2861887), (105, 2453046), (126, 2044205), (210, 1226523), (315, 817682), (630, 408841)]